Dishwasher



- Feb. 17, 1948. A. H. HABERS-TUMP 2,436,159

DISHWASHER Filed Aug. 29, 1941 2 Sheets-Sheet 1 Feb. 17, 1948. A. H. HABERSTUMP DISHWASHER Filed Aug. 29, 1941 2 Sheets-Sheet 2 INVEN'I'UR when the discs Patented Feb. 17, 1948' jum' 'so STATESJ'I'PATENT OFFICE M amass v DISHWASHER has n. nsw w p. Detroit, mien. asslgnor to The Murray (Jorporation of America, Detroit,

Mich, a corporation of Delaware Application August as. 1941, Serial No. mass 1 3 Claims. (Cl. sea-cs) The present invention embodies a tank in the bottom or which a'shaft is iournaled having a sleeve on which a plurality of discs of predeter mined shape are secured. The sleeve is mounted ior axial movement on the shaft and suitable -mechanism- 'is provided for reciprocating the sleeves and the discs in timed relation to the disc rotation. The bottom portion of the tank forms a reservoir in which water is introduced to a predetermined height controlled by a suitable float mechanism. when the discs are driven in rota-' tion, the water is picked up thereby and centrifugally thrown upwardly at high velocity against articles to be washed. During" the rotation of the discs, the discs are moved by the sleeve axially of the shaft at a slow rate in the order or five or six inches per minute for the purpose or distributing the sheets of thrown off water over all of the area within the tank. The discs are spaced apart unit or may be disposed in combination with elements other than a sink I have illustrated a cabinet II or conventional form upon which a sink II is mounted having a approximately the length of stroke in reciprof cation of the sleeve on the shaft. The main' object or the invention is to provide a plurality of discs on a sleeve which is driven in -i rotation and slowly reciprocated to produce,

- predetermined amount, a plurality of sheets of water thrown centrifugally from the peripheries of the discs, which aremoved substantially the distance the discs are spaced so as to cover the entire area of the tank.

Other objects and features of novelty of my invention will be specifically pointed'out or will become apparent when referring, for a better understanding of my invention, to the following description taken in conjunction with the accompanying drawings, wherein: p

Figure 1 is a broken-sectional view, in elevation,

o! a sink cabinet having a dishwashing unit built therein which embodies features of my invention! Fig. 2 is an enlarged sectional view of the re ciprocating mechanism illustrated in'Flg. 1, and

a Fig. 3 is an enlarged sectional view or the structure illustrated in Fig. 1, taken on the line 3-! thereof.

While I have illustrated the washing unit built into a sink cabinet, it is to be. understood that such an arrangement is shown primarily for the purpose of illustration and that the washing portion oi the cabinet may be mounted as a separate '65 suitable bearing dip into a reservoir of water a.

' forms a reservoir below the baskets.

splashboard portion J2, a sump portion i3, and an opening il, in which the dish washing tank I5 is mounted. The tank'comprises a U-shaped stamping l8 and end stampings il and l8 which are welded or otherwise secured thereto. It is to be understood that the tank ll-may be a unit stamping drawn from a single sheet or metal. The opening it has flanges is about the inner peripheral edge, which receives the outwardly extending flange is disposed at the toil edgeoi the tank l5. An angularly shaped sealing gasket 2i, made of rubber or other suitable material, is secured to the side wall of the opening it and the flange it for receiving the peripheral-edge of a cover panel 22 which is made from two stampings 23 and 24 having flanged edges which are disposed in telescoping relation-to each other.

Supporting bosses 2| project from the inside of the walls 01 the tank I! towhich'they are secured. The bosses iorm a support for one or a plurality of baskets fl which flt within thecabinet and nest with each other. are spaced from the bottom or the tank which Bearing brackets. 2| are mounted on the walls I1 and I8 01 the tank for supporting a shaft 29 on which a sleeve 3 lismounted. The right hand end'of the shaft 29, as viewed in the figures, is hollow for receiving a rod 3.2 through which a pin 33 extends in engagement with the walls of the sleeve 3i. A slot 34 is provided in the wall of the shaft 29 to permit axial movement of the rod 32 and sleeve 3! relative to the shaft while transmitting the movement of rotation of the shaft to the sleeve 2|. A springurges the sleeve II to the left, as viewed in the flgures. The sleeve is provided with a plurality of discs 38 of dish-like formation shaped in a predetermined manner to engage and throw oil a large amount of water at high velocity. The discs may be stamped from metal or molded as herein illustrated from a mo'ldable resin composition having a hub portion 21 containing a set screw 38 by which the discs are secured to the sleeve.

As illustrated in Fig. 2, the shaft 20 has a pulley 39 secured thereto by a set screw ll. The pulley is cast iromsuitable material having a proiectingarm l2,intheendorwhichapi nl2issupported, constructed from anti-friction material. The rod 32 has a pulley ll mounted thereon in a The bosses 26' l! for rotation relative to the 3 shaft, A swash plate 48 is cast with the pulls! it having such angularity as to provide substantially an inch movement between the pulleys when the pulleys are operated at relative speeds- A collar 41 is secured to the endof the rod 32 by a pin 49 which retains the pulley H on the end of the rod. A cap I! is threaded on the end of the shaft 29 over the rod 92, against suitable packing washers I, which seals the rod relative to the shaft. A suitable sealing gland I2 is mounted about the shaft 23 within the bearing supporting element 23. A motor 53 is suspended on a pivoted bracket 54, the weight of which maintains a predetermined tension on belts ll and 56 which drives the pulleys l9 and M. V

The motor shaft 51 has a pulley 83 mounted thereon which is provided with a wide face to permit the belt 59 to travel thereacross. The pulley 58 has a hub portion 59 to which one-half SI of a pulley 02 is attached. The other onehalf 63 or the pulley is secured thereto by a plurality of bolts 84 which adjust the one-half pulley portion 63 toward or from the onehalf portion 6| to slightly change the diameter of the resulting pulley 62. This adjustment is desirable since the speed of reciprocation of the sleeve II and discs 30 is preferably less than ten inches per minute. A drain valve 69 is secured to the bottom of the tank l5, having a valve part which is operated from a crank arm 61 by a solenoid 60. When the solenoid is de-energized, a spring returns the valve part to open position. A conduit i3 is secured by a band '14 to the bottom of the float can 15, so that the height of the water within the can will equal that within the bottom of the tank l5. A float is supported within the can on the rod 8!, by which the depth of the water in the casing may be regulated.

A cold water pipe 85 and a hot water pipe 90 are connected to the valve 93, either of which is controlled by. the solenoid within the casing 93. A suitable bracket 09 supports the mixing valve 84 on the outside of the tank It.

In operation the belts 55 and 50 are driven at slightly different relative speeds. The shaft 29 is driven in rotation by the belt 55 which rotates the sleeve 3| and the rod 32 along therewith. The diflerence in speeds of operation between the pulleys 39 and 44 causes the swash plate 49 to advance relative to the pin 93, which produces axial movement of the rod 32 and the sleeve ii a distance substantially equal to the distance between the discs 36. with the proper amount of water within the reservoir in the base of the tank II, the rotation of the discs will produce sheets of water thrown upwardly centrifugally from the periphery of the discs with material velocity. The discs, and therefore the sheets of water, are slowly reciprocated substan ially the distance beriphery thereof when the shaft is rotated, and

Number said rotation.

means for moving said shaft axially for movin:

said sheets a distance substantially equal to the distance between said discs.

2. In a washing unit having a reservoir in which a predetermined depth of water may be disposed, a horizontally disposed shaft in said reservoir, a plurality of spaced discs secured to said shaft in position to be partially immersed in the water when contained in said reservoir tor centrifugally throwing spaced sheets of water from the periphery of the disc when the shaft is rotated, and means for reciprocating said shaft for movin; said sheets backwardly and forwardly a distance substantially equal to the space between said discs.

3. In a washing or spraying device, a tank. a shaft horizontally mounted in said tank, discs secured on said shaft in spaced relation to each other. means for rotating said shaft and discs, and means for reciprocating said shaft durin man a numerous.

nnrnnuncns crrnp The following references are of record in the file of this patent:

UNITED STATES PATENTS Name Date Walker Nov, 10, 1931 Snyder et al. Mar. 26, 1935 Clark Apr. 18, 1939 chamberlln et al. Apr. 2, 1940 Dow June 20, 1922 Shank Jan. 24, 1928 Blakeslee Apr. 30, 1929 Metcalf et al. Feb. 25, 1902 Beai et al. Oct. 11,1910 Anstiss June 3, 1930 Fisk May 26, 1931 Yochem Oct. 7, 1941 1,870,318 2,050,634 Stegemann Aug. 11, 1938 FOREIGN PATENTS Number Stoddard A118. 9, 1932' 

